Door-lock.



A. STONE. DOOR LOCK.

APBLIQATION FILED 111111.11, 1914.

/N VEN TUR 7760 jwz rammed sept. 151914.

2. SHEETS-'SHEET l.

aai' Q n.. 1

A. STUNE. DOOR LOCK. APBLIMMON FILED MAR.11 1914.

Patented Sept. 15, 1914.

`. l l 725s 2 SHEETS-SHEET z f fg.. Amm/ufr ratones.

ina-iran srarns earner anion.

. .alrnnns'Jzoivny or ELMHURST, CALIFORNIA.

DOOR-LOCK.

Specification of Letters Patent.

ira-tenten sept. i5, raie.

hu'rrstgffinthecountypfi Alameda: 'and State fo @aliitorniagvhave invented lcertain new and l lockswand has'ffor-'its"principal'object the unlocked from the other side.

construction of device of the lcharacter specied=ha1vii1galv f'oornbined lock and 1latch.

Anotherv obj-ct's to. provide a mechanism, which is joperated 'by fa push or -pull yon the handle according Vto th'edireetion in which the door swings. f

v'A' fur-ther object fis :to provide., a device, which when' locked'lrfromlone side cannotbe In'y general I have-produced a simple efectiveinechanism'- especially applicable to interior doors, such as hotel roomswherefit is desired that whenthe room is occupied the door cannot belopened from the :outside:

` With these and other objects in view my invention consists in the new and novel combination of parts as herein described and pointed o'ut in the appended claims.

Reference `is to be had tothe accompanyingvdrawings wherein,

-1 ligu're lis a view in elevation looking at the edge of the door having my im- .p'ro'ved lock appliedthereto. Fig. 2 is a view'iinrhorizontal section through theimproved'lock. Fig. 3 is a'viewin section on thelineyB- Fig. V2. Fig. L is a View in elevation' showing the lock mechanism of one sideof thelvdevice. Fig. 5 is a view in section-onthe'line 5-5 Fig. 2. Fig. -is a view in section on the line 6-6 Fig. 4.

Referring ftof corresponding parts by the l same-numerals 'of reference, 1 denotes the door, 2the frame'therefor, 3 the stop strip,

I and "lifdenotesa tubular casing preferably1 square'in section in one 'end of which is pivoted at 6 the latch 5. A face plate 7 is attached' to the tubular casing 4 and has an opening through which the latch 5 projects',

and 8 is a' strike plate with an opening 9 for the latch' 5. Plate 7 is constructed with a laterally extending flange l0 adapted t0 extend `overthe edge of the strike plate 8 and :thus prevent any thin-tool from being inserted in the-crack between the plates 7 Applicationled March 11, 1914.. Serial No. 823,993.

andY 8 and in this mannerlpry #backy the :latch 5.

v.Pivotally amount-edv iii-fai recess in bolt'5 is a link' member -11'provided'-with a -`slot 12 wherein ispivoted a roller 13. The rear end of 11- is slotted as shown 'at14'and seated therein is a spring' 15 -mounteduponthe pin 16. Thisspring* servesto urge thebolt forward and at thesame time actas a. guide :tor-therearI end thereof.

17 denotes a rectangular spindle slidably .'mounted-in outer side lwalls ofcasing @and on one side of this member .is provided 1an .inclined-surface 18. A roller 18 ispivotally mounted in casing 4 on the other side of 17 sothat whenthe latter slides in the direction offthe arrowl and thein'clined surface 18 contacts with roller 13, the roller 13 takes the thrust. The movement of 18 pulls back link 111 andvwithdraws latch from the opening 9 in plate 8. y

On'the twosides of the door are mounted casings19 and 20 wherein Aare pivotally mountedthe handle levers' 2 1 and 22. The former v'member is pivotally mounted in the bottom .of plate 19` and` normally rests against plate 30-While the latter is pivotally mounted in the top plate 20 and normally rests against the outer wall of this plate. :Thus handle 21 may be pulled outwardly in which direction the door swings while the handle 22 must be pushed inwardly also in the direction of the door swing.- These two plates are clamped together by meansoi a special screw 23, which passes through a slotted opening in plate 19 and engages a pro-vided with a slotted 'opening 25 intermediate its length, the slot being dispo-sed in the plane of the slot in the head so that in erecting it may be positioned with the opening at right angles to the edge of the door 'and the nail 26 driven therethrough to prevent its removal.

Adjustmentv is provided for diierent widths of the doors by attaching the member 17 to the handle lever 21 through the medium of an eye bolt 27 in threaded engagement with one end oi the bolt 17, the eyeI portion being pivotally mounted in the handle lever as at 28. On the other end of 17 is provided a screw 29, the head of which I abuts aga-inst vthe inside of the handle lever 22. Thus. by adjusting the eye 27 and screw 29 various thicknesses 'of door may be accommodated and atthe same time member' 17 kept central in the tubular casing.

Attached to the entire surface of the casings 19 and 2O are plates 30 whereon is mounted the locking mechanisms. This mechanism consists of an irregularl shaped plate 31 pivotally mounted as at 32 held against outward movement by the head lof screw 33. On the lower1 end of plate 31 is formed a block 34, which is adapted to enter a notch 35 in the handle lever 2lv or between the screw head andend of 17 on the opposite side.' This plate is urged into these notchesby means of springs 36, and on the lower end is provided a notch 37 contacting with the rectangular key 38 on the lside of push button 39. This push button extends through openings in the outer casing and plate 30 and is held normally raised by a flat spring 40.

locked swings to a point opposite block 42. This block is provided with a number of corrugations 43 and an opening is provided in the plates 19 and 2O through which a key 44 may be inserted. This key is grooved to fit the corrugation of block 42 and the point beveled as shown at 45 so that when it contaets withthe arm 41 the latter will be de-h pressed `and plate 31 is moved to withdraw block 34 from the, path of spindle 17. The end 46 projects across the path of the key 38 when the door is locked and preventsthe bolt 39 from returning to its normal position. The handle levers are held in their normal position by a spring 47 coiled upon a pin 48 extending through the lower end of the handle lever 21 andhaving the free ends resting against plate 19 and in use when the handles are pulled or pushed against the action of this spring member 18 contacts with roller 13 and further movement pulls the link inwardly drawing the latch 5 from the opening in the plate 7.

To lock the device after the door is closed either of the buttons 39 is pressed iinvardly. This pushes the key 38 past the plate 31 allowing the springA 36 to move this plate toward the center of the mechanism bringing block 34 in the path of the sliding mechanism. It will be. apparent that if one or the other of the handle levers are prevented from moving the latch 5 can not be Withdrawn thus forming an effective lock. It will also be apparent that as the locking mechanisms on the two sides of the door are independent that when locked from one side it will be necessary to open it from that side, which makes this lock particularly applicable on the doors of hotel rooms. To unlock the key. is inserted through the opening and plate 4 2 and pushed against arm 41, which depresses the plate 31 draw- On one side of plate 31 is a projecting arm 41, which when the door isIk ing 34 from the notches and moving 46 past' the key 38 allowing spring 40to pull out the button 39.

I'Vhat I claim as new and wish to cover by Letters Patent-is z,-

1. In a lock of the character described comprising the combination with a casing, of a latch pivotally mounted adjacent the outer end thereof, a slotted bar pivotally se-v 'cured to said latch, a spindlel-slid'abl through said casing, an inclined surface on said spindle, a roller pivotallymounted in said slotted bar, said roller being adapted to contact with said inclined surface, spring" vv said casing and 'serving as av guidefor the" means mounted adjacent the inner' endfof other. end of said slotted bar,tand pivotally mounted-handles, adapted to moveto and from the door and impart a-'slidingmovement to said spindle.

f2. In a lock of the characteiiylfdescribed comprising inl combination with 1a `casing mounted in thedoor, ofaa latch ,pivotallya mcunted in said casing, a slotted bar pivotally attached tosaid latch,-a spring' livotally attached to .the rearend vof said ar, a

spindle slidable through thev slotinl said-bar and through openings in said door and ca sj ing, operative connections between said spindle and the door being pivotally mounted to move to. and from' said door, said operative connections comprising an eye bolt in threaded engagement with one en dfof said spindle and pivetal-ly attached tothe, handle adapted to be pulled, a screw engaging the other end of said spindle andconta`ctin`g. with the handle' adapted to be pushed, an inclined' surface on the side of said spindle, a roller pivotally mounted in said slotted bar andl contacting with said inclined surface and spring means for' holding said handles in their normal.

position. l l

3. In a lock of the character described comprising a casing, a latch pivotally mounted in the outer end thereof, a slotted bar pivoted to' said latch, a spindle slidable through the walls of said casing, an irlclined surface on said spindle, said ,surface contacting with said bar to withdraw said latch handles adjustably connected to' said spindle -and adapted to impart a reciprocating movement thereto, notches in saidref.

handles, said handlesv ciprocating parts, and spring actuated lock.y

plates adapted toy move into said notches' to prevent the movement of said reciprocatingparts. f

4.,.In comprising a casing, a latch, a sliding spindle mounted in said casing and adapted to` :operate said latch, locking meanslon 'each side of said casing comprisin a plate movable across the pathof said s iding spindle,- a spring urging such movement, a catch v formed in said plate,- a shoulder yon said buta lock of the character vsetmforth.

ten gdkapted t0 engage the catch of said'plate In testimn whereof I affix my signature Wheisad button is raised, spring means for. in presence 0 two Witnesses.

rasitfi said button, 'an arm' on said plate adapt t0 Contact with the beveled end of a key lnlf to be moved thereby to withdraw Witnesses: A- sadvpl'ate from .the path of said sliding W. A. STOGK,l partaz f 'R M. OYARzo.

ALFRED STONE. 

